Default Cwn back button

Hey,I'm from Bangladesh. I'm new here. Anyway, I'm using ultimate HD rom on kappa kernel with cwm.i like kappa kernel.but, when i boot my phone on recovery mode and open a wrong menu i tried to go back but the power button not worked. I had to pull out my battery. On once.it happens all time i tried to go back by pressing the power button.what can i do? Sorry for my English.

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